After the positive and negative connectors snap into place, pull the DC input
power cables back to ensure that they are connected securely.
During DC input power cabling, leave at least 50 mm of slack. The axial tension
on PV connectors must not exceed 80 N. Radial stress or torque must not be
generated on PV connectors.
Figure 5-10 Connecting DC input power cables
If the DC input power cable is reversely connected and the DC switch is set to ON,
do not immediately turn o the DC switch or reconnect the positive and negative
connectors. Otherwise, the device may be damaged. The caused device damage is
not covered under any warranty or service agreement. Wait until the night when
solar irradiance declines and the PV string current drops to below 0.5 A. Then set
the DC switch to the OFF position, remove the positive and negative connectors,
and correct the polarities of the DC input power cables.
----End
SUN2000-(8K, 10K)-LC0 Series
User Manual 5 Electrical Connections
Issue 01 (2023-09-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 51
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